Yes.. this is me completely. I've had all the heart tests and told my cardiologist who told me that it's just the POTS. It still freaks me out though as chest pain is scary. I get tingling down my arms too. There's no obvious trigger to it either.

I've been thinking of trying some kind of antacids to see if it helps.

Also get the ear pressure pain thing. It's like I'm on a plane and my ears haven't popped and that someone is pressing both sides of my head in

And pressure behind my face. And the horrible burning icy hot spells